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CELLS: Polycrystalline silicon solar cells Dimension of the module: 1,956 x 992x 50 ( mm) Life Time: 25 Years Warranty : 10 Year 90% power Warranty : 20 Year 80% power CHARACTERISTICS: Power at STC ( pm ): 280 Watt Maximum Power voltage ( Vpm ): 35.1 Volts Maximum power cusrrent ( Ipm ): 7.95 Amp Open circuit voltage ( Voc ): 44.8 Volts Short circuit current ( Isc ): 8.33 Amp Tolerance: +- 5% Operating temperature : -40C to +85C Maximum system voltage: 600 VDC(UL)/1000V DC (IEC) COMPONENTS: Front Glass: 4.0 mm Junction Box: IP-67 Rated